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Entrada Formation
Entrada Formation Google Images11 locationsSedimentary
.: nonot :.
Jun 3 2009
Devil's Garden - Primitive Loop - A		 Featured Detail Photo mini map Featured Full Photo.: ryanandjuliabuff :.
Jan 3 2007
Delicate Arch
ID2032  URL
TypeSedimentary
The Entrada Formation is composed of three members (listed from youngest to oldest): Moab Tongue, Slickrock and Dewey Bridge. Each has different characteristics due to changes in the depositional environment. The Arches of Arches National Park are usually in the Slickrock Member. This layer does not occur in Canyonlands.

Deposited
Mid- to late-Jurassic (144 to 208 million years ago)
Depositional Environment
Varied between tidal flat (Dewey Bridge) to near-shore sand dunes.

Appearance
Moab Tongue: Thin, red layer not heavily cross-bedded.
Slickrock: Red, cross-bedded, arch-forming sandstone.
Dewey Bridge: Lumpy, misshapen red sandstone

Example
Entrada is one of the dominant sandstones in Arches National Park.
Source: US-Parks.com Canyonlands National Park

  • .: DixieFlyer :.
    Pyramid Rock Summit
     
  • .: PaleoRob :.
    Globe in the Wild
     
  • .: PaleoRob :.
    Delicate Arch
     
  • .: PaleoRob :.
    Delicate Arch
     
  • .: PaleoRob :.
    Delicate Arch
     
  • .: RedRoxx44 :.
    Cathedral Valley Drive Cap Reef
     
  • .: slegal :.
    Double Arch
     
  • .: hippiepunkpirate :.
    Delicate Arch
     
  • .: lP14 :.
    Arches National Park Trails
     
  • .: lP14 :.
    Arches National Park Trails
     
  • .: lP14 :.
    Arches National Park Trails
     
  • .: nonot :.
    Devil's Garden - Primitive Loop - Arches NP
     
  • .: nonot :.
    Devil's Garden - Primitive Loop - Arches NP
     
  • .: nonot :.
    Devil's Garden - Primitive Loop - Arches NP
     
  • .: nonot :.
    Devil's Garden - Primitive Loop - Arches NP
     
  • .: nonot :.
    Devil's Garden - Primitive Loop - Arches NP
     
  • .: nonot :.
    Broken Arch Loop - Arches NP
     
  • .: nonot :.
    Broken Arch Loop - Arches NP
     
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